40845199 has 2 divisors, whose sum is σ = 40845200. Its totient is φ = 40845198.

The previous prime is 40845191. The next prime is 40845223. The reversal of 40845199 is 99154804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40845199 - 2³ = 40845191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40845191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20422599 + 20422600.

It is an arithmetic number, because the mean of its divisors is an integer number (20422600).

Almost surely, 2^40845199 is an apocalyptic number.

40845199 is a deficient number, since it is larger than the sum of its proper divisors (1).

40845199 is an equidigital number, since it uses as much as digits as its factorization.

40845199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 40845199 is about 6391.0248786873. The cubic root of 40845199 is about 344.3872031560.

The spelling of 40845199 in words is "forty million, eight hundred forty-five thousand, one hundred ninety-nine".